AS OF APRIL FIRST, SPOILERS WERE MANDATORY AND THE PROCE OF THE Z-28 OPTION WENT FROM 473.95 TO 506.60 TO INCLUDE THE PRICE OF THE SPOILERS. AS FAR AS THE DUCTED HOOD, THERE IS A HOLE IN THE FIREWALL ANOVE THE FUSE BOX FOR THE HARNESS TO RUN THROUGH. I THINK IT IS 3/4THS OF AN INCH IN DIAMETER. SEARCH CRG FOR A THREAD ON IT. IT WAS JUST DISCUSSED NOT TOO LONG AGO.